/* 参考已有css文件，保持风格一致 */

/* 导航栏样式 */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #333;
    color: white;
    padding: 10px 20px;
}

.logo {
    font-size: 24px;
}

.nav-links {
    list-style-type: none;
    margin: 0;
    padding: 0;
    display: flex;
}

.nav-links li {
    margin-right: 20px;
}

.nav-links li a {
    color: white;
    text-decoration: none;
}

.nav-links li a.active {
    font-weight: bold;
}

/* 主要内容区域样式 */
.main-content {
    padding: 20px;
}

.distribution-charts {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.chart-box {
    flex: 1 1 calc(33.33% - 20px);
    border: 1px solid #ccc;
    padding: 20px;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
}

.chart-box h3 {
    margin-top: 0;
}

.chart {
    width: 100%;
    height: 300px;
}